Patent US3174464A successfully refreshed from Google Patents.
US3174464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor generating apparatus
Assignee: Babcock and Wilcox Co
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Filing: 1963-05-22
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Granted: 1965-03-23
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Expires: 1983-05-22
Abstract
No abstract record available.
Inventors
- 👤 Lowell E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:17
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/02; F22B; F22B21/00; F22B21/34; F22B21/341; F22B21/343; F22G5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
IN A BOILER, THE COMBINATION OF UPRIGHT WALLS DEFINING AN UPWARDLY ELONGATED SUBSTANTIALLY UNOBSTRUCTED FURNACE, MEANS DEFINING A HEATING GAS OUTLET IN THE UPPER PORTION OF ONE OF THE WALLS OF SAID FURNACE, A NOSE BAFFLE PROJECTING INTO SAID FURNACE FROM THE WALL OF SAID HEATING GAS OUTLET AND POSITIONED DOWNWARDLY ADJACENT THE LOWER EDGE PORTION OF SAID OUTLET, MEANS FOR INTRODUCING COMBUSTION CONSTITUENTS THROUGH THE LOWER PORTION OF A FURNACE WALL OPPOSITE SAID GAS OUTLET WALL AND AT A LEVEL BENEATH SAID NOSE BAFFLE, THE HEATING GASES GENERATED BY THE COMBUSTION OF SAID COMBUSTION CONSTITUENTS MOVING UPWARDLY IN THE LOWER PORTION OF SAID FURNACE AND BEING DEFLECTED TOWARD THE WALL PORTION OF SAID FURNACE AND BEING INTRODUTION BY SAID NOSE BAFFLE, AND MEANS FOR INTRODUCING TEMPERING GAS ONLY THROUGH THE WALL OF SAID GAS OUTLET AT A LEVEL IMMEDIATELY BELOW SAID BOSE BAFFLE TO INTERSECT SAID HEATING GASES AT AN ACUTE FLOW ANGLE AND TO SUBSTANTIALLY UNIFORMLY MIX THEREWITH IN DISCHARGING THROUGH SAID GAS OUTLET.
Claim 2
Dependent Claim
166 words
IN A BOILER, THE COMBINATION OF UPRIGHT WALLS DEFINING AN UPWARDLY ELONGATED SUBSTANTIALLY UNOBSTRUCTED FURNACE, MEANS DEFINING A HEATING GAS OUTLET IN THE UPPER PORTION OF ONE OF THE WALLS OF SAID FURNACE, A NOSE BAFFLE PROJECTING INTO SAID FURNACE FROM THE WALL OF SAID HEATING GAS OUTLET AND POSITIONED DOWNWARDLY ADJACENT THE LOWER EDGE PORTION OF SAID OUTLET, MEANS FOR INTRODUCING COMBUSTION CONSTITUENTS THROUGH THE LOWER PORTION OF A FURNACE WALL OPPOSITE SAID GAS OUTLET WALL AND AT A LEVEL BENEATH SAID NOSE BAFFLE, THE HEATING GASES GENERATED BY THE COMBUSTION OF SAID COMBUSTION CONSTITUENTS MOVING UPWARDLY IN THE LOWER PORTION OF SAID FURNACE AND BEING DEFLECTED TOWARD THE WALL PORTION OF SAID FURNACE AND BEING INTRODUTION BY SAID NOSE BAFFLE, AND MEANS FOR INTRODUCING TEMPERING GAS ONLY THROUGH THE WALL OF SAID GAS OUTLET AT A LEVEL IMMEDIATELY BELOW SAID BOSE BAFFLE TO INTERSECT SAID HEATING GASES AT AN ACUTE FLOW ANGLE AND TO SUBSTANTIALLY UNIFORMLY MIX THEREWITH IN DISCHARGING THROUGH SAID GAS OUTLET.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |